Probability Notes

July 8 - Today we did a bit more with Independent events.

We saw that:
IF - 2 events are independent THEN   P(A) X P(B) = P(A and B)
But the corollary to this is
IF P(A) X P(B) = P(A and B) THEN events A and B are independent

We can use this idea to test if 2 events A and B are independent.

See the class notes below:

HW - P198 1,2,3,5,6,9,12,13

July 7 - Today we covered a good deal in Probability sections 3.2, 3.4 & 3.5 that covered Odds & Probabilities, Mutually Exclusive Events, and Independent Events.

Language:

• Odds - expressed For: Against
• Probability - fraction or division of For/ (For + Against) or For/ Total
• Mutually exclusive - no overlap or P(A and B) = 0
• Not Mutually Exclusive - Overlap exists - Remember to subtract the double counted elements or probabilities!!

Click on the Pictures to Enlarge them..

3.2 Odds 1

3.2 Odds Part 2

3.4 Mutually Exclusive Events 1

3.4 Mutually Exclusive Events 2